Latest Contributions by MaryM

‎10-11-2013

After much trial and error I found a post that helped... http://forums.arcgis.com/threads/58298-Python-Script-Help-Spaces-in-filename From my expereince, if I made a function with loop to remove the " ' "s from the layers with spaces (the Layers with spaces got these " ' "s unlike the other layers) it was set in an infinite loop b/c it would not remove. The forum above did not work for doing this: arcpy.mapping.AddLayer(dataFrame,Layer.strip("'"),"AUTO_ARRANGE") as Layer has no method .strip. Although, when I tried it when I defined the Layer it worked and took out the " ' "s when it was filled as a parameter: Layer=arcpy.mapping.Layer(item.strip("'"))

‎10-10-2013

I wrote a script tool where a map is generated, a checkbox of layers can be checked to add the layers to the map, and when I run it some layers will add to the new map and some layers, throw "Object: CreateObject Layer invalid data source." I did notice all of the layers that error have a space in their names. They are valid layers as in when AddData is used manually they can add to a map. I know the list of the layers is a Python multiValue list, not a Python list, taking out one if the items and testing it's type yields that the item is a unicode object. I also noticed when I print the mutliValues out the ones with spaces have single quotes surrounding them and the ones w/o spaces do not have single quotes surrounding them... 'file path here' Object: CreateObject Layer invalid data source 'file path here' Object: CreateObject Layer invalid data source filePathHere Added: FilePath.lyr I convert them to layers in the script when I iterate through the multiValue list like so: try: if countyLayers[0]: for item in countyLayers.split(';'): try: item1=arcpy.mapping.Layer(item) arcpy.mapping.AddLayer(dataFrame,item1,"AUTO_ARRANGE") item2=str(item.split("\\")[-1]) arcpy.AddMessage("Added: " + item2) arcpy.RefreshTOC() del item1, item2 except Exception as e: arcpy.AddMessage(e.message) pass except: arcpy.AddMessage("No county data specified to add") pass

‎10-04-2013

I am writing a tool to generate a MXD and some metadata. It works but I am wondering if there is a better way than I am using to write the Tool Validator class than I am? Wondering how I would add another value list (not derived)? My value list now is to pick a mxd from a list of mxds in a template folder. I would like to add a value list to make a liks of layer files to add from a folder of template layer files. I would not mind changing below code so getting the list of mxds from a folder is a seperate function, but when I do that I get errors. import arcpy import os class ToolValidator(object): """Class for validating a tool's parameter values and controlling the behavior of the tool's dialog.""" def __init__(self): """Setup arcpy and the list of tool parameters.""" self.params = arcpy.GetParameterInfo() def initializeParameters(self): """Refine the properties of a tool's parameters. This method is called when the tool is opened.""" return def updateParameters(self): """Modify the values and properties of parameters before internal validation is performed. This method is called whenever a parameter has been changed.""" folderPath=r"folderPathHere"#Folder of Map Templates mapTemplates = [] for filename in os.listdir(folderPath): fullpath = os.path.join(folderPath, filename) if os.path.isfile(fullpath): basename, extension = os.path.splitext(fullpath) if extension.lower() == ".mxd": mapTemplates.append(fullpath) self.params[0].filter.list = mapTemplates return def updateMessages(self): """Modify the messages created by internal validation for each tool parameter. This method is called after internal validation.""" return

‎10-03-2013

I wanted to do this same thing for having a list of MXDs show in a drop down list on a tool. I understand the easy way to add a List of Values manually. However, I want one to be auto-generated in case an MXD is added in a certain folder. I tried copying this a bit but I do not understand it so much. Do you need to add anything in the main code of the tool to signify this information in the Validation code? Where is it that it assigns the list generated to the filter list? import arcpy import os class ToolValidator(object): """Class for validating a tool's parameter values and controlling the behavior of the tool's dialog.""" def __init__(self): """Setup arcpy and the list of tool parameters.""" self.params = arcpy.GetParameterInfo() self.mapTemplateParam = self.params[0] self.type1Param = self.params[1] return def initializeParameters(self): """Refine the properties of a tool's parameters. This method is called when the tool is opened.""" self.mapTemplateParam.Value = self.mapTemplateParam.filter.list[0] self.getMapTemlateList(); return def updateParameters(self): """Modify the values and properties of parameters before internal validation is performed. This method is called whenever a parameter has been changed.""" self.getMapTemplateList() return def getMapTemplateList(self): folderPath=r"folderPathHere"#Folder of Map Templates mapTemplates = [] for filename in os.listdir(folderPath): fullpath = os.path.join(folderPath, filename) if os.path.isfile(fullpath): basename, extension = os.path.splitext(fullpath) if extension.lower() == ".mxd": mapTemplates.append(fullpath) self.mapTemplateParam.filter.list = mapTemplates return I get error line 4, line 18 and a IndexError: list index out of range?

‎08-29-2013

Google has a python course, very good. https://developers.google.com/edu/python/

‎08-26-2013

Is it possible to check out the publisher extension with arcpy or python somehow? I do not see Publisher available in the extension codes.

‎07-18-2013

Cool beans! Your solution worked, all I did was add the scratch workspace part to mine and everything ran successfully and with great timing! Thanks for the writing of the code so cleanly, it is very clear, I will try to write in that manner. I seem to get to so excited when I write code and cannot think of the explainations so clearly.

‎07-17-2013

It makes the files for the first value and then takes all day and does not finish. If I do one value manually, it takes 2-3 hours. Does anyone know any kind of monitoring I can build in this or any ideas of why this script seems to stall out?

‎07-15-2013

I have a cost distance tool setup for a batch process. To take a bunch of inputs from a folder and then use the same cost raster and file saving conventions. My tool will run but it never runs the process of the cost distance. It just sits there and does not run. I tried making it with arcpy the regular way and tried with gp arcpy. Either way it does the same thing. Anyone know what I can do to make this run? #Cost distance for all hubs #by rangermry, 7-11-2013 using Python 2.6.5 import arcpy, os from arcpy.sa import * from arcpy import env #User inputs #Input Rasters Location Folder inputFolder=arcpy.GetParameterAsText(0) #Cost Raster a.k.a. Impedence Layer inCostRaster=arcpy.GetParameterAsText(1) #Derived inputs #Make output folder #Take input folder name as variable. rootFolName=str(inputFolder.split("\\")[-1]) #Take input folder name off of root folder path. newRoot=inputFolder.replace(rootFolName,"") outputFolder=os.path.join(newRoot,"Cost_Distance") if not os.path.isdir(outputFolder): os.makedirs(outputFolder) arcpy.AddMessage("-Folder made for output : "+outputFolder+'\n') #Environmental Workspace env.workspace=inputFolder #Get all Raster Items from inputFolder as workspace rasterList=arcpy.ListRasters() arcpy.AddMessage("-Obtaining all raster inputs\n.") try: for rast in rasterList: if not rast=="imped": fullpath = os.path.join(inputFolder, rast) arcpy.AddMessage("-Processing file : "+rast+'\n') #Set Local Variables inSourceData=fullpath outBkLinkRaster=outputFolder+"\\BkLk_"+rast.replace("value","") outDistRaster=outputFolder+"\\CD_"+rast.replace("value","") #Execute CostDistance arcpy.AddMessage("Proceeding to cost distance.\n") #Check out Spatial Analyst Licesne arcpy.CheckOutExtension("spatial") arcpy.gp.CostDistance_sa(inSourceData,inCostRaster,outDistRaster,"",outBkLinkRaster) arcpy.AddMessage("-Processed file: "+rast+"Saving file...") arcpy.AddMessage("-Saved file! \n ") except IOError: #Print traceback error. tb=sys.exc_info()[2] tbinfo=traceback.format_tb(tb)[0] arcpy.AddMessage("PYTHON ERRORS:\nTraceback info: "+tbinfo+"\nError Info:"+str(sys.exc_info()[1]))

‎07-11-2013

I am trying this now, maybe it will work: #Extract by Attributes for all hubs #by rangermry, 7-11-2013 using Python 2.6.5 import arcpy, os from arcpy.sa import * from arcpy import env #Check out Spatial Analyst Licesne arcpy.CheckOutExtension("Spatial") #User inputs ras=arcpy.GetParameterAsText(0) saveSpace=arcpy.GetParameterAsText(1) #Derived inputs rasName=str(ras.split("\\")[-1]) rasWkspce=ras.replace(rasName,"") env.workspace=rasWkspce i=0.0 while i <= myRaster.maximum: i+=1 inSQLClause="Value="+str(i) num=str((str(i)).split(".")[0]) attExtract=ExtractByAttributes(rasName,inSQLClause) attExtract.save(os.path.join(saveSpace,"Value"+num))

‎07-11-2013

Oops, made mistake for input parameter should be (1) for the second one.

‎07-11-2013

Please help, I get an error? Error is that it cannot save? The odd thing is it runs if I do not set it up as a toolbox and put the input name of the raster seperate from the folder name? Any ideas or is that how it has to work? #Extract by Attributes for all hubs #by rangermry, 7-11-2013 using Python 2.6.5 import arcpy, os from arcpy.sa import * #Check out Spatial Analyst Licesne arcpy.CheckOutExtension("Spatial") ras=arcpy.GetParameterAsText(0) saveSpace=arcpy.GetParameterAsText(1) i=0.0 while i <= myRaster.maximum: i+=1 inSQLClause="Value="+str(i) num=str((str(i)).split(".")[0]) attExtract=ExtractByAttributes(ras,inSQLClause) attExtract.save(os.path.join(saveSpace,"Value"+num))

‎06-07-2013

Okay, setting up the modules to run with all the objects being passed to them may help my problem. Does anything need to be in __init__.py?

‎06-07-2013

I have been diving through Python this year and have gotten stuck at modules. I have four scripts that perform some awesome fixes for MXDs when there is a database change. However, I have to put the same functions and variables at the top of each one of the scripts. I was thinking of turning this into a module or package? I cannot seem to figure these module/packages out. My question is for Python 2.6.5/ArcGIS 10... What would need to be in __init__.py? How would I set up the global variables/functions for all the scripts to use? How do I register all the scripts to be able to recognize what went on in the others? I have tried the helps out there but am further lost. Maybe someone can help me and then I can fix and post my product?

‎06-03-2013

I get that, how do I assign the value list to the parameter or is that what the above does?

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Date Last Visited	‎11-11-2020 02:24 AM

My Ideas

Latest Contributions by MaryM

Re: Layer Invalid Data Source ?

Layer Invalid Data Source ?

ToolValidator class

Re: Easy question on Parameters

Re: Learning Python

Can you check out Publisher extension with arcpy?

Re: Cost Distance Tool Failure

Re: Cost Distance Tool Failure

Cost Distance Tool Failure

Re: Extract.save error? Cannot save file

Re: Extract.save error? Cannot save file

Extract.save error? Cannot save file

Re: Modules for Dummy

Modules for Dummy

Re: Making an Exporting Toolbox

Re: Python Toolbox Help

Re: Python Toolbox Help